zircon/third_party/ulib/musl/src/env/BUILD.gn

# Copyright 2019 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

source_set("env") {
  sources = [
    "__environ.c",
    "__stack_chk_fail.c",
    "clearenv.c",
    "getenv.c",
    "putenv.c",
    "setenv.c",
    "unsetenv.c",
  ]

  deps = [
    ":start-main",
    "//zircon/third_party/ulib/musl:musl_internal",
  ]

  configs -= [ "//build/config:symbol_visibility_hidden" ]

  # TODO(https://fxbug.dev/42136089): delete the below and fix compiler warnings
  configs += [ "//build/config:Wno-conversion" ]
}

source_set("start-main") {
  visibility = [ ":*" ]

  sources = [ "__libc_start_main.c" ]

  deps = [ "//zircon/third_party/ulib/musl:musl_internal" ]

  # Make sure this code is compiled with frame pointers so the outermost few
  # frames seen in user backtraces are always coherent and consistent between
  # frame-pointer and shadow-call-stack backtraces.
  configs += [ "//build/config:default_frame_pointers" ]
  configs -= [ "//build/config:default_frame_pointers" ]
  configs += [ "//build/config:frame_pointers" ]
}